Means for coating roofing and other similar materials for covering building surfaces



R. MACLEAN MEANS FOR COATING ROOFING AND OTHER SIMILAR MATERIALS FOR COVERING BUILDING SURFACES Filed August 23, 1924 I 5 Sheets-Sheet 1 1| 1 l 'l n iii 'i 'l II '{hili H m- I l! MILAR March 2 1926.

G BUILDING SURFACES -F1led August 23, 1924 3 Sheets-Sheet 2 FING AND OTHER SI MEANS FOR COATING MATERIALS FOR COVER March 2 1926.

R. MACLEAN MEANS FOR COATING ROOFING AND OTHER SIMILAR MATERIALS FOR COVERING BUILDING SURFACES Filed August 23, 19 4 3 Sheets-Sheet 5 hw N. \w .v b wh n .5 T

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Patented Mar. 2, 1926.

UNITED STATES PATENT OFFICE.

ROBERT MACLEAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMALGAMATED ROOFING COMPANY, OF CHICAGO. ILLINOIS, A CORPORATION OF ILLINOIS.

MEANS FOR COATING ROOFING AND OTHERSIMILAR MATERIALS FOR COVERING BUILDING SURFACES.

a ncanda filed August 23, 1924. Serial No. 733,773.

Be it known that l, lloni-zu'r MAonniiN, a citizen of)the United States, and resident. of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Means for Coating Roofing and Other Similar Materials for Covering Building Surfaces, of which the following is a full. clear. ('oiu'isc. and exact description, reference being bad to the accompanying drauings, forming a part of this specification.

My invention relates to improvcn'ients in means for coating rooting and other similar materials for covering building surfaces, and is particularly concerned with the provision of a novel type of mechanism for applying comminuted or granulated materials to the felt paper strips forming the base of such roofing materials.

The principal to provide a coating mechanism, of the character 'described,iwhereby the manufacturer of roofing materials having comminuted or granulated materials may easily and quickly change from one kind or color of granulated or comminuted material to another kind or color.

The above object of my invention is of very great importance, for the reason that heretofore so much time has been required to change the mechanism so as to apply a coating of one kind or color to another kind or color that it ,has been practically prohibitive for a manufacturer to change over during the course of a days output. ,Heretofore such changes have been made at night, after the days run has been completed. With my improved mechanism it is capable to change over in the course of one or two minutes and practically without loss of the finished product.

Another object of my invention is to provide an apparatus that will permit the manufacturer to fill orders for any desired number of different kinds of roofing without material loss of time or product. As stated above, the time heretofore required for changing over from one color or kind of coatin' material to another was so great that such c anges were made only after a days run had been completed. This meant that when a manufacturer received an order for quantities of several diiferent kinds of roofobject of my invention is,

ing materials, it would require at least as many days to fill that order as the number of diti'ercnt kinds of rooting material called for by the order. With my improved mechanism or apparatus it is possible to change from one kind of roofing material to another as each portion of the order is tilled, and in this manner the filling of the order is greatly expedited, and furthermore, it makes it unnecessary for the manufacturer to accumulate surplus quantities of materials thathe may not subsequently'have a ready market for. It also makes it possible to [ill orders without carrying a large stock of the various kinds of rooting material.

A further object of my invention is to provide an apparatus of the character described that is simple in construction and economical to manufacture,

Other objects of my invention will appear as this description progresses, reference being had to the accompanying drawings, in which Figure 1 is a longitudinal section of a portion of the machine for coating roofing materials, illustrating certain features of my invention; v

F igure-2 is a perspective view of the upper portion ofthemonveyor system shown in Figure 1;

' Figure 3 is an end elevation of the hopper for holding the granulated or comminuted coating materials;

Figure t is a transverse section, taken on the line 4-4l of Figure 1;

Figure 5 is a transverse section, taken on the line 5.5 of Figure l; and

Figure 6 is a horizontal section, taken on line 66 of Figures 1 and 5. I I

Throughout the several views similar reference characters are used for referring to similar parts andthe several sections are taken looking in the directions of the small arrows.

The conventional machine for preparing roofing materialsof the character referred to herein, comprises an impregnating vat for holding a more or less heavy impregnating fluid and a second vat for holding a i more viscous coating-fluid. The felt paper strip passes through the first vat where it is thoroughly impregnated with the moisture repellent material and then through the second vat where it acquires a coating of the product then passes over a plurality of coolmg rollers and from the cooling rollers to the roll-forming machine. y

In the accompanying drawings, 1 have illustrated merely the second vat: 10 in which the felt paper strip'recelves the coating of more viscous material and then passes through the pressing rolls 11 and 12 where the excess coating material is removed. From these rolls the paper strip passes around the two rolls 13 and '14 in such manner as to permit the excess anulatedor comminuted coating material to drop from t'hecoated surface of the paper strip. The strip then passes to the cooling rolls and the roll-forming machine, as 'described above.

For supplying various kinds or colors or comminuted or granulated coating materials to the paper strip as it passesbetween the rolls 11, 12 and 14, I provide a hopper H comprising a phfrality of compartments 15,

16 and 17. These compartments have a" common bottom plate 18, having a row of discharge openings 19, 20 and 21 for each of the oompartm ents l5, 16 and 17 respectively. The e openings discharge into an equalizing c amber 22 at the bottom of the to a position such as shown the operator to determine the hopper. V

corrugated feed roller 23 extends across the bottom of the equalizing chamber 22 and partially fills the discharge 'opening formed in the'bottom of this chamber. A slidable gate 24 is used in conjunction withthe feed roller.23 to control the quantity of material fed to the coated'paper strip. The material discharged between the roller1'23 and the gate 24 dropsoupon the apron 25 and is directed by the latter upon the/rotating brush 26. This brush tends to distribute the coating materials evenly upon the coated surface uniform product.

In order to insure thorough coatingof the paper strip, an excess quantity of coating material is fed to the coated pa r strip and that portion of this material t at does not adhere to the strip is discharged into the conveyor trough 27, as shown 51128. A conveyor belt 29, of any suitable construction, is

of the felt paper strip so aswto produce a veys the-excesswmaterial to the chute 31 at the front side of the machine where it drops at 32 to enable uantity of excess material beingused, and t us be able properly to regulate the quantity of material being delivered to the paper strip. The excess material that accumulates at the point 32 is conveyed from this point to the bottom of the vertical conveyor 33 by means of asuitabledrag conveyor 34, mounted upon the sprockets 35 and 36 and operating in a trough 37' formed in the floor 38. The sprocket 36 is mounted .upon a hollow shaft 39 into which telescopes the shaft 40, rigidly supporting the beveled gears 41 and 42.v

The granulated or comminuted coating materials are supplied to the compartments 15, 16 and 17 of the hopper by means of the vertical conveyor 33. The upper end of this conveyor is, as shown in Figure 2, provided with. a flexible spout 48 that can be positioned to discharge in anyv one of the compartments. I prefer to place "screens 49 at the top of each compartment to remove granulated particles of coating material that. are too large to be used for coating the paper strip. M

For'controlling the discharge of coating materials from. the several compartments into the equalizing chamber 22 I make use of gates 50, 51 and 52. These gates each have a series or row of openings 53 that'can be brought into registry with the corresponding series of openings 19, 20 or 21, as the case may be. Levers 54, 55 and 56, pivotally mounted upon the side of the "hop per H, provide means for manipulating the gates 50, 51 and 52, respectively.

In order to describe the operation of my improved coating machine, it will be assumed that it is being operated to coat the paper stripwith granulated or comminuted material from the compartment 16 and that it is desired to change to the material in the compartment 15. The first-operation is to ;close the openings 20 by pushing inwardly upon the handle 55. The operator then permits the machine to continue in operation until all of the material has been discharged from the equalizing chamber 22. The various rollers are then stopped the operator shifts the lever 45 so as to reverse the direcmounted upon the two rollers 30 and con tion of the conveyor 34. This completely clears the trough 37 of any coating material that might be therein and piles it up at the point 32, from which it is removed by the operator who uses a shovel, or anysuitable implement for this purpose. In this manner the entire machine is cleared of the ing material to llow from the compartment 15 1nto the equalizing chamber 2:3 and again starts the rolls of the machine to cause the paper strip to be fed beneath the distributing brush 26. He then returns the lever 45 to the position shown in l igure 1 so that the excess material will be carried to the bottom of the conveyor lil'and returned by the latter to the compartment 15 to which the flexible discharge spout '18 has been sliiftcd. I

The equalizing chamber described above, not only performs the function of conveying the materials from each of the compartments 15, iii and 17 to the apron 35, but also insures a substant ally uniform discharge of material between the roller 23 and the gate 24 that might not he obtained if the material were discharged directly from thecompartn'ients 15. lo and '17 upon the apron 25. With the aborc,described apparatus, it is possible, easily and quickly, to change from one kind or color of surfacing or coating material to another kind or color without substantial interruption in the manufacturing processes and with very little or practicallyno loss of time or material.

While I have described the details of construction of the preferred embodiment of my invention, it is to bc clearly understood that my invention is not limited to these details,

but is capable of other adaptations and modifications within the scope of the appended claims.

Having thus described my invention, what I claim is:

1. A machine for coating roofing with surfacing materials comprising means for drawing a paper strip through said machine, a hopper comprising a plurality of differentcompartments for holding surfacing materials of different colors, and an equalizing chamber located beneath and communicating with said compartments, said equalizing chamber being provided with a controllable outlet for discharging the surfacing materials upon said strip, means for controlling the passage of surfacing materials from said compartments to said equalizing chamber, a conveyor having an adjustabledischarge for supplying surfacing material to any one of said compartments, a second conveyor for receiving the excess surfacing materials fed to said strip, said second conveyor discharging into said first named con veyor, and means for reversing the direction of movement of said secondconveyor.

2. A machine for coating roofing with surfacing materials comprising means for drawing a paper strip through said machine, a hopper comprising a plurality of different compartments for holding surfacing materials of diti'erei'it colors. and. an equalizing chamber located beneath and communicating with said com1 artmcnts, said equalizing chan'iber being provided with a controllable outlet fordischarging the surfacing materials upontsaid strip, means for controlling the passage of surfacing materials from any oneof said compartmentS' to said equalizing chamber, a conveyor for supplying surfacing material to any one of said, compartments, a secout'l con\'e in-- for receiving the excess surfacing materials fed to said strip said second ,-on\'c. 'or discharging into said first named conveyor.

3. A machine finvcoating rooting with surfacing materials con'iprising means for drawing a paper strip through said machine,

- a hopper comprising a plurality of different,

compartments for holding surfacing materials of dilt'erent colors. and an equalizing chamber located beneath and con'nuunicating with said compartments, said equalizing ehan'iber being proridcd with a controllable outlet for discharging the surfacing materials upon said strip, means for controlling the passage of surfacing materials from any one of said compartments to said equaliziug chamber, and a conveyor for supplying surfacing material to any one of said compartments.

. 4. A ma chine for coating roofing with surfacing materials comprising means for draw ing a paper strip through said machine, a hopper comprising a plurality of different compartments for holding surfacing materials of different colors, and an equaliz ing chamber located beneath and communicating with said compartments, said equalizing chamber being provided with a controllalcle outlet for discharging the surfacing materials upon said strip, and means for controlling the passage of surfacing materials from any one of said compartments to said equalizing chamber.

5. A machine for coating roofing with surfacing materials comprising means for coating a strip of roofing with a surfacing fluid, a plurality of compartments for suppl ing surfacing materials to said strip, an an equalizing chamber between said compartments and said strip.

6. A machine for coating roofing with surfacing materials comprising an equalizing chamber having a discharge outlet,

means for passing a strip of roofing beneath A the 'machine,

colored surfacing materials to said equalizing chamber, and means for returning ex- ,cess materials to said last named means.

8. Amachine for coating 9. stri of roofing material with granular materia s, 'comprising means for advancing the strip through the machine, a lurality of lcompartments for holding sur ent character, an equalizing chamber for receiving granular materials from said compartments, valve means for controlling the flow of materials from said compartments: to said equalizing chamber, means for regulating the discharge of material from said equalizingchamber onto said strip, means for collecting excess material thrown from said strip, and means for conveying said excess material back to the compart ment from which it came.

9. A machine for coating a strip of roofing material with granular materials, com-prising means for advancing the strip through compartments for separately .prising means for advancin holdinga plurality of different kinds of granular materials, means for separately receiving and discharging the materials from said compartments upon said strip, and means for receiving excess material thrown from said strip'and conveying it back to the compartment from which it was discharged. acin'g materials of difier- 10. A machine for coating a strip of roofing material with granular materials, com the strip through the machine, a plura ity of compartments "for holding granular materials of different character, means for receiving granular materials from said compartments and distributing said materials on said strip, and other means for cutting off the supply of granular material from one compartment to said distributing means and for establishing communication between another compartment and said distributing means.

In witness whereof, I hereunto subscribe my name this 21st day of August, 1924. ROBERT MACLEAN. 

